On Thu, 2003-09-04 at 19:20, Tim Kientzle wrote:

> Depends on how you're installing the binary.  It has always been
> safe to do either of the following:
>    * Rename the current executable and then install the new one.
>    * Unlink the current executable and then install the new one.
> Many tools that claim to "overwrite" really do the latter, which
> causes a certain amount of understandable confusion.  (I'm pretty
> sure "install" does unlink/copy by default and will do rename/copy
> if you specify -b.)

I thought I remembered a discussion from the very early days where a
solution was implemented to copy the pages if a file was overwritten
into memory or swap but I can find no record of that now other than a
suggestion in a thread that Solaris might do this.

I think I'm confusing the above impression with an actual problem that
was fixed where you'd still get the error even though the program had
stopped executing.


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